What's your back up plan if you get hit by a brick in the head and forget where you hid your seed?

I know the title sounds a bit like a joke, but for real. Does any of you have like a solid back up plan in case something happens to you / your memory and someone close to you needs access to you funds?

There's that famous case of a BTC billionaire, Mircea Popescu, who died at 41 in mysterious circumstances while on holiday in Costa Rica and nobody was ever able to access his funds. According to various websites, it is understood that he was behind the drive to keep Bitcoin from changing block size from 1MB to 2MB.

Another example - In 2019, after Gerald Cotton, the founder of Canada’s largest crypto exchange, died suddenly, his wife had told investors that the keys to $135 million in cryptocurrency were only with Cotten.